舌慢适应传入纤维终止于三叉神经脊束核和三叉神经感觉主核形成突触的差异

目的：研究舌慢适应传入纤维终止于三叉神经脊束核和三叉神经感觉主核形成突触的类型及突触各组成部分出现频率的差异，为神经生理学研究和神经解剖学研究提供参考资料。方法：用猫作为试验动物，采用确定部位和功能的传入纤维进行细胞内注射，电镜连续切片观察技术。结果：1．猫舌慢适应传入纤维终止于三叉神经脊束核形成的突触以中间型为主；2．猫舌慢适应传入纤维终止于三叉神经感觉主核形成的突触以复杂型为主；3．形成三联体的数目及形成突触的各组成部分出现的频率，三叉神经感觉主核相对较高。结论：三叉神经感觉主核是舌的主要终止核团。     

直流伺服系统滑模变结构-神经网络控制的研究

针对直流伺服系统特点，根据现代控制理论，提出了滑模控制—神经网络策略，理论研究和实验表明，系统有较好鲁棒性和动静态特性。     

吲哚二甲川菁染料的绿色合成及其光谱研究

目的研究吲哚二甲川菁染料的绿色合成及部分染料的紫外-可见光谱性质。方法参照绿色化学的原则,采用微波辐照法,以哌啶为催化剂,在无溶剂条件下快速合成4种吲哚二甲川菁染料,并用1H NMR,IR,UV-vis确证产物的结构。结果提供了绿色合成吲哚二甲川菁染料的方法;所用无溶剂微波辐照法合成吲哚二甲川菁染料,既减少杂质的引入,又避免使用大量有机溶剂,反应条件温和,操作简便,后处理简单;合成的染料在不同溶剂中的最大吸收、摩尔消光系数有较大差别。结论染料的最大吸收波长基本随溶剂的折光率增大而红移;溶剂的折射率对于染料光谱吸收有一定影响。合成所需时间短、产率高,绿色环保。     

抄纸过程的BP神经网络PID控制

为了使抄纸过程的输出(湿度和基重)最大限度地接近给定值,采用BP神经网络PID控制。此控制器由PID控制器和BP神经网络组成,采用BP算法进行PID参数的在线调整,使输出值较好地跟踪了给定值,能达到较好的控制效果,并为抄纸过程的控制提供另一种思路。     

Excitatory effect of histamine on neuronal activity of rat cerebellar fastigial nucleus in vitro

The cerebellar fastigial nucleus (FN) holds an important role in motor control and body balance. Previous studies have revealed that the nucleus is innervated by direct hypothalamocerebellar histaminergic fibers. However, the functional role of histaminergic projection in cerebellar FN has never been established. In this study, we investigated the effect of histamine on neuronal firing of cerebellar FN by using slice preparations. Sixty-five FN cells were recorded from 47 cerebellar slices, and a vast majority of the cells responded to histamine stimulation with an excitatory response (58/65, 89.2%). Perfusing slices with low-Ca2 /high-Mg2 medium did not block the histamine-induced excitation (n=10), supporting a direct postsynaptic action of histamine on the cells. Furthermore, the excitatory effect of histamine on FN neurons was not blocked by selective histamine H1 receptor antagonist triprolidine (n=15) or chlorpheniramine (n=10), but was effectively suppressed by ranitidine (n=15), a highly selective histamine H2 receptor antagonist. On the other hand, highly selective histamine H2 receptor agonist dimaprit (n=20) instead of histamine H1 receptor agonist 2-pyridylethylamine (n=16) mimicked the ex- citatory effect of histamine on FN neurons. The dimaprit-induced FN neuronal excitation was effectively antagonized by selective histamine H2 receptor antagonist ranitidine (n=13) but not influenced by se- lective histamine H1 receptor antagonist triprolidine (n=15). These results demonstrate that histamine excites cerebellar FN cells via the histamine H2 receptor mechanism and suggest that the hypotha- lamocerebellar histaminergic fibers may modulate cerebellar FN-mediated sensorimotor integration through their excitatory innervations on FN neurons.     

Z<38稳定核素的分布特点

核素分类是核素体系基本性质规律的统一.当以氘氚结团数分析天然有丰度核素分布时,在正方形核素图中得到支持核素体系新规律是1,2,4,8,16,8,4,2,1存在的证据.具体说明了Z<38核素的三类1,2,4特点:偶S18～6连续核素列的1,2,4分布;Z20～8偶偶核素的1,2,4分布;坐标轴S≤16下界的偶4,奇4,2,1分布.偶Z36～24区域,其上、下界及中心区各有七核素,各以Z30核素703020Zn4010,673026Zn344,673023Zn377为中点对称分布.     

针刀结合手法治疗神经根型颈椎病

介绍神经根型颈椎病的诊断、针刀治疗和手法治疗的方法 ,详细分析了针刀和手法治疗对神经根型颈椎病的治疗效果 ,认为小针刀加手法治疗神经根型颈椎病 ,见效快 ,治疗时间短 ,不易复发 ,又实惠经济     

孤束核的结构与功能

孤束核是一个位于延髓背侧、包绕于孤束周围的Y字形柱状核团。在吻尾方向上分为吻、中、尾3段，根据细胞构筑将其分为7个亚核。孤束核有广泛的传入传出联系，是内脏的初级传入及调节中枢，与呼吸、血压、胃肠道活动的调节以及镇痛等多种功能有关。笔者就近年来对孤束核的形态学和生理学的研究成果做了简要的综述。     

汽车ESA点火提前角数据生成方法的研究

针对汽车ESA比现行控制策略的局限性，提出了6种汽车发动机ESA控制策略的数学模型及点火提前数据生成方法，以利于提高点火控制精度，从而使发动机的工作状态达到最佳．     

Dog sciatic nerve gap repaired by artificial tissue nerve graft

The feasibility of repairing dog sciatic nerve damage by using a biodegradable artificial tissue nerve graft enriched with neuroregenerating factors is investigated. The artificial nerve graft was implanted to a 30 mm gap of the sciatic nerve damage in 7 dogs. The dogs with the same nerve damage that were repaired by interposition of the autologous nerve or were given no treatment served as control group 1 or 2, respectively. The observations include gross and morphological observations, immune reaction, electrophysiological examination, fluorescence tracing of the neuron formation and the number of the neurons at the experimental sites, etc. Results showed that 6 months after the implantation of the graft, the regenerated nerve repaired the damage of the sciatic nerve without occurrence of rejection and obvious inflammatory reaction in all 7 dogs, and the function of the sciatic nerve recovered with the nerve conduction velocity of (23.91±11.35)m/s. The regenerated neurons and the forming of axon could be observed under an electron microscope. This proves that artificial tissue nerve graft transplantation can bridge the damaged nerve ends and promote the nerve regeneration.